Computer-generated holograms for complex surface reliefs on azopolymer films
Abstract
The light-driven superficial structuration observed on the surface of films of azobenzene-containing polymers follows the optical field distribution of the illuminating light pattern, i.e. the light polarization state and the intensity distribution. The ability to precisely manipulate the illuminating intensity pattern can hence provide a new level in the range of complex light-induced superficial textures accessible onto azopolymer film surfaces. In this respect, digital holography, based on the principles of the Computer-Generated Holograms (CGHs), and actually implemented by means of a versatile liquid crystal spatial light modulator, can represent a unique experimental tool in the field of the light-induced mass migration in azo-materials. In the present work, we demonstrate the possibility to precisely control the features and the quality of complex light patterns generated through CGHs in order to induce arbitrarily complex surface reliefs onto the surface of an azopolymer. The results shown here can potentially broaden the range of possible applications of photo-responsive azopolymer films in the fields of surface engineering, biology and photonics.
Related
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BibTeX
@article{oscurato2026computergenerated,
title = {{Computer-generated holograms for complex surface reliefs on azopolymer films}},
author = {Stefano Luigi Oscurato and Marcella Salvatore and Fabio Borbone and Pasqualino Maddalena and Antonio Ambrosio},
journal = {Scientific Reports},
year = {2026},
month = oct,
doi = {10.1038/s41598-019-43256-w},
url = {https://hal.science/hal-05789735v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Computer-generated holograms for complex surface reliefs on azopolymer films
AU - Stefano Luigi Oscurato
AU - Marcella Salvatore
AU - Fabio Borbone
AU - Pasqualino Maddalena
AU - Antonio Ambrosio
PY - 2026
DA - 2026/10/09
JO - Scientific Reports
DO - 10.1038/s41598-019-43256-w
UR - https://hal.science/hal-05789735v1
AB - The light-driven superficial structuration observed on the surface of films of azobenzene-containing polymers follows the optical field distribution of the illuminating light pattern, i.e. the light polarization state and the intensity distribution. The ability to precisely manipulate the illuminating intensity pattern can hence provide a new level in the range of complex light-induced superficial textures accessible onto azopolymer film surfaces. In this respect, digital holography, based on the principles of the Computer-Generated Holograms (CGHs), and actually implemented by means of a versatile liquid crystal spatial light modulator, can represent a unique experimental tool in the field of the light-induced mass migration in azo-materials. In the present work, we demonstrate the possibility to precisely control the features and the quality of complex light patterns generated through CGHs in order to induce arbitrarily complex surface reliefs onto the surface of an azopolymer. The results shown here can potentially broaden the range of possible applications of photo-responsive azopolymer films in the fields of surface engineering, biology and photonics.
SN - 2045-2322
ER -